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Petaclone Readme

Table of Contents


What is Petaclone?

Petaclone is an open source multi-protocol multi-platform messenger software which allows you to exchange messages on the network. Current main focus is LAN messenger protocols which are server-less and can recognize each members automatically. Protocols supported by Petaclone are IP Messenger, Petarou and Petarou X. Especially, IP Messenger is a de facto standard messenger of IT industry in Japan and Petaclone is the first compatible messenger which implements both file and folder transfer and message encryption. Petaclone can run on Windows, Mac OS X and Linux.

Features of Petaclone


Petaclone runs on several OSs with Java Runtime Environment 1.4.2 or higher. Java 7 or higher is recommended. Please download from

Details of prerequisite:

Platform Java provider Version of Java
Windows Windows XP, Windows 7, Windows 8
Oracle 1.4.2 or higher. Java 7 or higher is recommended.
Normally, installation required. It's possible that has been preinstalled in a vender PC.
Tested OSs: Windows 8 Pro 64bit, Windows 7 Professional SP1 64bit, Windows XP SP3 32bit
Mac OS X Lion (10.7) Oracle Java 7
Installation required.
Snow Leopard (10.6) Apple Java 6
Leopard (10.5) Apple Java 5 (Java 6 recommended)
Linux GTK 2
Oracle 1.4.2 or higher. Java 7 or higher is recommended.
Installation required.
Tested distributions: Ubuntu 10.04 LTS, Ubuntu 11.10


First installation of zip, dmg or tgz archive

Expand archive and move the extracted folder to your convenient place such as "C:\Program Files\" in Windows.

Version up from 1.6.x to 1.7.x

Back up the data of old version. Preferences and messages are passed to new version when it is launched.

Note: If an old version is launched after using new version, new version specific message attributes and preferences will be lost.


Simply, delete folder. In Windows, Windows registry is not used by this software.

Preferences and saved messages locate at follows. In addition, these folders can be opend by selecting menu item of [Help] - [Open Configuration Folder] in the main window.

Windows XP

C:/Documents and Settings/(user name)/Application Data/petaclone/

"Application Data" is invisible folder.

Windows 7

C:/Users/(user name)/AppData/Roaming/petaclone/

"AppData" is invisible folder.

Mac OS X

/Users/(user name)/Library/Preferences/petaclone/

This folder can be seen in Finder:

/(start up disk)/Users/(user name)/Library/Preferences/petaclone/



How to launch


Double click petaclone.exe.

See Petaclone FAQ(in Japanese) for starting automatically during system start-up(log on).

Mac OS X

Double click


Double click petaclone and click "Execute" button(Ubuntu).

Or type in command line:

java -jar petaclone.jar &


Drop down the menu, almost understandable. See Petaclone FAQ for more details.


See Licenses.

Getting the latest version and redistribution

Latest version

You can get the latest stable version of this software at Vector: ソフトライブラリ&PCショップ and its association sites.

The latest version including developing versions are available at Peta Walkers: Petaclone.

In addition, I DO NOT recommend you to download from B r o t h e r s o f t which is reported as malware contaminated software distribution site.


I recommend to make contact with me in advance if you want to redistribute this software.

DO NOT redistribute alpha or beta version software without responsible and continuous update. These versions are developing, experimental and unstable.

Contact information

Feel free to send any questions, comments or requests you may have.

If you find a problem, it is possible that there is the latest stable version in the web site, please make sure the reproducibility. If the problem is not solved yet, let me know.

Readme - Licenses - History - FAQ(in Japanese) - Virtual Key Codes(in Japanese)